Brain Mass Fact

Brain Mass Fact is that After the age of 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.At the time of birth our brain weighs about 400 grams and grows to 1,200 grams by the time we grow 6 years old. After that, it starts growing more slowly until peaking at a time before we hit 25 years old at 1450 gms. After the age of 25, our brain starts â€˜shrinkingâ€™.